Ballistic Target PHD Filter Based on Infrared Focal Plane Ambiguous Observation

Table 1

Launch point, direction, and time of three targets.

	Target 1	Target 2	Target 3
Launch point	(W 5°, N 5°)	(E 5°, N 5°)	(E 5°, S 5°)
Direction	135°	225°	315°
Discovery time